Proper grounding
Posted: Wed Dec 07, 2022 12:31 pm
Hello all,
I'm currently in the process of a retrofit on an existing plasma table and I had grounding issues that lead to my last controller (not an acorn) frying so I'm doing everything possible to make sure that doesn't happen this time. Here is my machine specs;
Running acorn rev_4 plasma board w/ black THC RX and THC TX
gecko g251 drives
48 volt power supply
Hypertherm Powermax 85
I've read the Hypertherm bulletin on grounding so I'll be following that my question is my cabinet is plastic, I currently have my 48 dc commons ran to a buss bar, am I correct in thinking that all commons should be tied together (acorn 24 volt common, thc common, 120 ac earth ground, stepper power 48 volt common, 5 volt common, wire shielding ,table ground bus bar)?
I'm currently in the process of a retrofit on an existing plasma table and I had grounding issues that lead to my last controller (not an acorn) frying so I'm doing everything possible to make sure that doesn't happen this time. Here is my machine specs;
Running acorn rev_4 plasma board w/ black THC RX and THC TX
gecko g251 drives
48 volt power supply
Hypertherm Powermax 85
I've read the Hypertherm bulletin on grounding so I'll be following that my question is my cabinet is plastic, I currently have my 48 dc commons ran to a buss bar, am I correct in thinking that all commons should be tied together (acorn 24 volt common, thc common, 120 ac earth ground, stepper power 48 volt common, 5 volt common, wire shielding ,table ground bus bar)?